Re: [PATCH RFC 0/4] Add XDP RX queue index metadata via kfuncs

[Mehdi Ben Hadj Khelifa]

On 9/24/25 11:31 PM, Stanislav Fomichev wrote:
> On 09/24, Mehdi Ben Hadj Khelifa wrote:
> > On 9/23/25 9:45 PM, Stanislav Fomichev wrote:
> > > On 09/23, Mehdi Ben Hadj Khelifa wrote:
> > > > ---
> > > > Mehdi Ben Hadj Khelifa (4):
> > > >     netlink: specs: Add XDP RX queue index to XDP metadata
> > > >     net: xdp: Add xmo_rx_queue_index callback
> > > >     uapi: netdev: Add XDP RX queue index metadata flags
> > > >     net: veth: Implement RX queue index XDP hint
> > > >
> > > >    Documentation/netlink/specs/netdev.yaml |  5 +++++
> > > >    drivers/net/veth.c                      | 12 ++++++++++++
> > > >    include/net/xdp.h                       |  5 +++++
> > > >    include/uapi/linux/netdev.h             |  3 +++
> > > >    net/core/xdp.c                          | 15 +++++++++++++++
> > > >    tools/include/uapi/linux/netdev.h       |  3 +++
> > > >    6 files changed, 43 insertions(+)
> > > >    ---
> > > >    base-commit: 07e27ad16399afcd693be20211b0dfae63e0615f
> > > >    this is the commit of tag: v6.17-rc7 on the mainline.
> > > >    This patch series is intended to make a base for setting
> > > >    queue_index in the xdp_rxq_info struct in bpf/cpumap.c to
> > > >    the right index. Although that part I still didn't figure
> > > >    out yet,I m searching for my guidance to do that as well
> > > >    as for the correctness of the patches in this series.
> >
> > >
> I don't really understand what queue_index means for the cpu map. It is
> a kernel thread doing work, there is no queue. Maybe whoever added
> the todo can clarify?

Hi Lorenzo,
Can you help us clarify the todo added in cpu_map_bpf_prog_run_xdp() in 
this commit: 
github.com/torvalds/linux/commit/9216477449f33cdbc9c9a99d49f500b7fbb81702 ?

Regards,
Mehdi